549975197 has 16 divisors (see below), whose sum is σ = 585049920. Its totient is φ = 516980880.

The previous prime is 549975193. The next prime is 549975263. The reversal of 549975197 is 791579945.

It is not a de Polignac number, because 549975197 - 2² = 549975193 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (549975191) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1241258 + ... + 1241700.

It is an arithmetic number, because the mean of its divisors is an integer number (36565620).

Almost surely, 2^549975197 is an apocalyptic number.

It is an amenable number.

549975197 is a deficient number, since it is larger than the sum of its proper divisors (35074723).

549975197 is an equidigital number, since it uses as much as digits as its factorization.

549975197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 681 (or 643 counting only the distinct ones).

The product of its digits is 3572100, while the sum is 56.

The square root of 549975197 is about 23451.5499914185. The cubic root of 549975197 is about 819.3089542789.

The spelling of 549975197 in words is "five hundred forty-nine million, nine hundred seventy-five thousand, one hundred ninety-seven".